Timer for igniters or sparkers.



L In

TMER FOR ml; OR SJARXERS.

APYLNATIQN NMD JUNE 1a, 1908I 936,5@fh mem@ oct. 12, 1909.

2 BEEETS--SEEET 1.

N A N Y H. ROSE. TIMER FOR IGNITEES GR SPARKEBS.

APPLICATION FILED JUNE 18. 1908.

936,564. Patented' Oct. 12, 1909.

Z BHEETB--SHEET 2.

@savante-L ff. ik

attoznzga and substantial, the fixed contact members The wear on the parts on accountJ of their the brush as it is worn away. yllhe holder is provided with a sleeve 3l, in which the shaft 4 is arranged and secured. This sleeve is surrounded by a suitable bushing 32 to which lubricant is supplied by means of the oil cup 33. The brush is preferably connected to the holder by the wires Se to insure a perfeet electrical connection. By this arrangement of parts, l am enabled to employ contact. parts `which are comparatively large bein of copper and the brush of carbon, whic is, as is well lrnown, the most effective for the purpose, and while the parts are of comparatively large sise, the structure is, at the same time, quite compact. A smooth bearing surface is secured for the brush, and as the contact members are entirely in closed, they are not affected by dust or moisture.

large size and the arrangement of their parts and the danger of injurious arcing is :re-4 duced to a minimum, and on account of this large size and the large bearing surface of the parts upon each other, the heat is so distributed that it is not injurious.

l have illustrated and described my improved timer in detail in the form preferred y me on account of structural simplicity1 and economy. l am aware, however, that it is ci .pable of considerable variation in structural details without departing from my invention, and l desire to'bc understoodas claiming the same specifically, as illustrated, as well as broadly.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent is:

l, The combination with a shaft; a cylindrical contact holder, the circumferential 'wall of said holder being of insulating material; contact members seated in said circumferential wall, the inner faces of said contact members being curved to correspond to said wall `and flush therewith; binding posts arranged through said wall and contact members, said binding posts being adapted to secure the said contact members in their seats; a brush; a brush holderl mounted on said shaft within said contact holder, comprising a socket in which said brush is adjustably arranged; a pivoted arm on said holder' arranged to engage the inner end of the brush; a screw arranged through said arm; a spring arranged on said screw to engage said arm; a nut on said screwV adapted to be adjusted to regulate the tension of said spring; and a removable end plate for said contact holder.

2. The combination with a shaft; a cylindrical contact holder, the circumferential wall of said holder being of insulating material; contact members seated in said circumferential wall, the inner faces of said contact members being curved to correspond to said wall and flush therewith; a brush; a brush holder mounted on said shaft within said Contact holder, comprising' a socket. in which said brush is adjustably arranged; a pivoted arm on said holder arranged to engage the inner end of the brush; a screw arranged through said arm; a spring arranged on said screw to engage said arm; a nut on said screw 4adapted to be adjusted to regulate the tension of said spring; and a removable end plate for said Contact holder. l

3. The combination with a shaft; a cylindrical contact holder, the circumferential wall of said holder being of insulating material; contact members seated in said circumferential wall, the inner faces of said contact members being curved to correspond to said wall and flush therewith; binding posts arranged through said wall and contact members, said binding posts being adapted to secure the said contact members in their seats; a brush; a brush holder mounted on said shaft within said contact holder', comprising a socket in which said brush is adjustably arranged; a piyoted arm on said holder arranged to engage the inner end of the brush; a screw arranged through said arm; a spring arranged on said screw to engage said arm; and a nui on said screw adapted to be adjusted to regulate thetension of said spring.

Il. The combination with a shaft; a cylindrical contact holder, the circumferential wall of said holder being of insulating material; Contact members seated in said'circum ferential wall, the inner faces of said contact members being curved to correspond to said wall and flush therewith; a brush; a brush holder mounted on said shaft within said contact holder,.comprising a socket in which said brush is adjustably arranged; a pivoted arm on said holder.ar1anged to engage the inner end of the brush; a screw arranged through said arm; a spring ai'A ranged on said lscrew to engage said arm; and a nut on said screw adapted to be auj usted to regulate the tension of said spring.

5. The combination with a cylindrical contact holder comprising a metal end plate; a plurality of rings of insulating material7 the inner rings being cut away on their inner faces to form seats for the contact blocks, the outer rings being arranged to engage the ends of the contact blocks arranged in said seats; tie rods arranged through said rings and end plate, said tie rods having collars thereon adapted to enga e the outer rings whereby they are secure to said end plate; an end plate perforated to engage said tie rods; clamping nuts therefor; contact blocks arranged in said seats, said contact blocks being curved on their inner faces to correspond to the curve of said rings and being flush therewith; screws arranged .lli

'basarse through said contact blocks; nuts on the outer ends of said -screws for ysecuring said blocks in their seats; and a revolving brush arranged within said contact holder. A

6. The combination with -a cylindrical contact holder comprising al metal end plate; a plurality of rings of insulating'material, tlie inner rings being cut away on their inner faces to form seats for the contact blocks, the outer rings being arranged to'engage the ends of the contact blocksarranged in said..

seats; tie rods arranged' tlirough saidrings and end plate, said tie 'rods having collars thereon adapted to engage the -outer rings Vwhereby they are secured to said end plate;

the outer rings being arranged to engage the ends of the contact blocks arranged in said seats; tie rods arranged through said rings and end plate; contact blocks arranged 1n said seats; said contact blocks being curved on their iniiei faces to correspond to the' curve of said rings and being flush therewith; screws arranged through said contact blocks; nuts on the outer ends of said screws for securing said blocks in their seats; anda revolving brusharranged withinl saidL contact holder.

8. The combination with a cylindrical contact holder comprising a metal end plate; a

h plurality of rings of insulating material, the

inner rin s being cut away .on their inner faces to orm seats or'the contact blocks, the outer rings being arranged to engage the ends of the contact blocks arranged in said seats; t-ie rods arranged through said rings and end plate; contactI blocks arranged in said seats, said contact blocks being curved on their inner faces to correspond to the curve of said rings and being flush therewith; and a revolving brush arranged within said contact holder.

9. The combination with-a shaft; a'cylindrical Contact holder; contact members arranged in the Walls of said contact holder; a

brush; a brush holder mounted on said shaft within said lcontact holder comprising a socket in which said brush is adjustably arranged; a pivoted arm on said holder arranged to engage the 'inner end of said brush;'a screw arranged through said arm;

a spring arranged on said screw to engage said arm; and a nut on said screw adapted to be adjusted to regulate the tension ot ,said

spring. v

In witness whereof, I have hereunto set` my hand and seal in the presence of two Witnesses.

HARRY' nosa. [n a] Witnessesz g M. F. EAST; WM. F. HasKEL. 

